Hitachi-ge Nuclear Energy, Ltd.

Tomoharu Hashimoto

Sohei Fukui

Motoi Tanaka

Kazuo Tominaga

Kazushige Ishida

Masaaki Tanaka

Fumio Totsuka

As an organic iodine remover that removes organic iodine in a containment vessel of a nuclear reactor, an organic agent (for example, an ionic liquid, an interfacial active agent, a quaternary salt, or a phase transfer catalyst) having a function of dissolving and decomposing the organic iodine and retaining iodine is used. The organic iodine remover is a substance composed of a cation and an anion. The organic iodine remover is, in particular, an organic iodine remover in which, in a structure of the cation of the organic agent, carbon or oxygen is bonded to, via a single bond, to a phosphorus element, a sulfur element or a nitrogen element, the number of carbon chains is 2 or more, and an anionic structure is configured with a substance with high nucleophilicity. By using such an organic agent, the organic iodine is removed with an efficiency of 99% or more.

Organic iodine remover

There is provided an organic iodine trapping apparatus that can efficiently trap an organic iodine without using complicated or large equipment. An organic iodine trapping apparatusis an apparatus that traps an organic iodine, including: a trapping vesselthrough which gas containing an organic iodine is passed; an organic iodine remover(Example: trihexyl (tetradecyl) phosphonium chloride, or the like) that is disposed in or injected into the trapping vesseland decomposes the organic iodine; and a trapping materialthat is disposed in or injected into the trapping vesseland traps iodine ions generated by decomposition of the organic iodine, in which the trapping materialis a metal (Example: silver or the like) or a metal compound (Example: silver chloride, silver oxide, or the like).

Organic iodine trapping apparatus

Growing community of inventors

Ibaraki, Japan

Tomoharu Hashimoto